Report Industry Investment Rating - Not provided in the document Core Viewpoints - **PTA**: Proximal TA start - up increased, polyester start - up decreased from high levels, inventory continued to decline, basis strengthened, and spot processing fees decreased but remained at a relatively high level. PX domestic start - up increased, there were unexpected overseas maintenance, PXN decreased slightly, the structure remained, isomerization and disproportionation benefits weakened slightly, and the US - Asia aromatics spread increased. In the future, polyester output is expected to decline, and the low processing fee state of bottle chips continues. TA has fully implemented maintenance in the first half of the year and still has production plans, so it has high requirements for further inventory reduction. When the downstream exceeds expectations, the inventory reduction link will gradually shift to PX. Pay attention to the opportunity to shrink the far - month TA processing fee [1] - **MEG**: Proximal domestic oil - based start - up decreased slightly, coal - based maintenance and restart coexisted, start - up decreased slightly, port inventory continued to decline due to less arrivals, downstream inventory levels decreased, basis strengthened, and profits continued to increase. Overall, there are unexpected device situations in the near term. With the supply of oil - based products decreasing more than expected and the short - term resilience of the demand side still existing, the reduction of port inventory is expected to be more significant. Pay attention to the staged positive set opportunity [2] - **Polyester Staple Fiber**: Proximal Fujian Jinlun had maintenance, start - up decreased to 93.2%, production and sales weakened month - on - month, and inventory increased slightly. On the demand side, the start - up of polyester yarn increased, raw material inventory decreased, and inventory increased month - on - month, with benefits still weakening. Generally, the benefits of staple fiber are low, but the start - up has not decreased significantly. With high self - supply and downstream profit under pressure, the fundamentals are not expected to improve significantly. However, the disk processing fee has been compressed to a relatively low level and is expected to remain weak. Pay attention to subsequent production reduction actions [2] - **Natural Rubber**: The national explicit inventory decreased slightly, and the absolute level is not high. The price of Thai cup lump rubber rebounded slightly, and the enthusiasm for tapping rubber at this price is expected to be okay. The strategy is to wait and see [2] - **Styrene and Derivatives**: The prices of related products such as styrene, EPS, and PS changed, and the domestic profits of products such as ABS, EPS, and PS also fluctuated. The price of pure benzene and its spread with naphtha also changed [2] Summary by Relevant Catalogs PTA - **Market Data**: From May 22 to May 28, 2025, crude oil prices fluctuated, PTA spot prices changed between 4860 - 4910, PTA processing fees ranged from 85.54 - 97.22, and PTA load remained at 77.1. The average daily trading basis of PTA spot was 2509(+185) [1] - **Device Situation**: A 100 - million - ton PTA device restarted [1] MEG - **Market Data**: From May 22 to May 28, 2025, the price of MEG in Northeast Asia remained at 780, the port inventory price fluctuated between 521 - 530, and the profit of MEG inner - disk cash flow (ethylene) changed between - 372 - 540. The negotiation price of MEG spot was around 4524 - 4532, and the basis was around 09(+150) [2] - **Device Situation**: A 100 - million - ton MEG device in Sanjiang reduced its load [2] Polyester Staple Fiber - **Market Data**: From May 2 to May 28, 2025, the spot price of polyester staple fiber was around 6515, and the market basis was around 07 - 30 [2] - **Device Situation**: Fujian Jinlun had maintenance, and the start - up decreased to 93.2% [2] Natural Rubber - **Market Data**: From May 2 to May 28, 2025, the prices of various types of natural rubber, such as Shanghai full - latex, Thai cup lump rubber, etc., changed. For example, the price of Shanghai full - latex decreased from 14540 to 13800 [2] Styrene and Derivatives - **Market Data**: From May 22 to May 28, 2025, the prices of styrene, pure benzene, EPS, etc. changed. For example, the price of styrene in China decreased from 7825 to 7650, and the price of pure benzene decreased from 8850 to 8750. The domestic profits of ABS, EPS, and PS also fluctuated [2]

研究中心能化团队 2025/05/15 P T A 日期 原油 石脑油 日本 PX CFR 台湾 PTA内盘现 货 POY 1 50D/4 8F 石脑油裂 解价差 PX加工差 PTA加 工差 聚酯毛利 PTA平衡 负荷 PTA负 荷 仓单+有 效预报 TA基差 产销 2025/0 5/08 62.8 555 778 4615 6505 93.88 223.0 328 -19 85.8 72.5 97814 115 0.50 2025/0 5/09 63.9 569 785 4715 6580 100.54 216.0 393 -42 86.9 72.5 91568 145 0.65 2025/0 5/12 65.0 590 870 4840 6675 87.60 280.0 324 -87 86.9 72.5 88754 180 1.15 2025/0 5/13 66.6 576 846 4935 6840 87.60 270.0 298 -29 86.9 72.5 85172 200 0.50 2025/0 5/14 66.1 590 870 5095 7000 87.60 280.0 324 -59 86 ...

芳烃橡胶早报 研究中心能化团队 2025/05/13 P T A 日期 原油 2025/0 5/06 2025/0 5/07 2025/0 5/08 | | 亚） | 国） | | 东） | 中国） | | 苏） | 南） | 料） | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 2025/05/06 | 790 | 685 | 5555 | 5300 | 870 | | 7130 | 7315 | 8375 | | 2025/05/07 | 790 | 700 | 5650 | 5300 | 880 | | 7240 | 7415 | 8350 | | 2025/05/08 | 785 | 693 | 5600 | 5330 | 865 | | 7140 | 7315 | 8350 | | 2025/05/09 | 780 | 699 | 5650 | 5350 | 865 | | 7135 | 7340 | 8350 | | 2025/05/12 | 780 | 699 | 5650 | 5550 | 865 | | 73 ...

Report Industry Investment Rating - Not provided Core Viewpoints - For PTA, in May, the overall de - stocking of PX and PTA continues, but the far - month supply - demand is expected to weaken as polyester reduces its load. The PTA processing fee is fully repaired. Pay attention to the opportunity of expanding PXN at low prices and the opportunity of shrinking the forward PTA processing fee at high prices [2] - For MEG, the marginal is still in the de - stocking stage, but the port de - stocking amplitude may be limited due to the implicit inventory. The supply reduction is limited under the good coal - to - MEG efficiency, and there is partial production conversion in oil - based MEG. The current valuation is relatively neutral, and the far - month supply - demand core focuses on the changes in imports and ethane - to - MEG efficiency under the subsequent tariff impact [3] - For polyester staple fiber, there is still a risk of inventory accumulation in the future, but the processing fee on the futures market is not high (900 yuan/ton), and the lower price is supported by the low price difference between raw and recycled materials [3] - For natural rubber and 20 - number rubber, the main contradictions are the low absolute level of national explicit inventory, the slight rebound of the Thai cup - lump rubber price, and the rubber purchase and storage. The strategy is to wait and see [3] Summaries by Related Catalogs PTA - **Price and Index Changes**: From April 29 to May 8, the price of crude oil decreased from 64.3 to 62.8, the price of PX CFR fluctuated, and the PTA processing fee and other indicators also changed. For example, the PTA processing fee changed from 184.0 to 223.0 and then to 223.0 again [2] - **Device Changes**: Taihua's 1.5 million - ton device was under maintenance, Honggang's 2.5 million - ton device was under maintenance, and Tongkun Jiatong's 3 million - ton device was restarted. PX's pre - holiday start - up was basically stable, and after the holiday, Zhejiang Petrochemical was expected to restart, while Shenghong and Liaoyang had plans to reduce the load in May [2] - **Supply - Demand Situation**: The pre - holiday start - up of PTA decreased month - on - month. During the holiday, Hengli Huizhou was under maintenance, and there were maintenance plans for Hengli Dalian and Honggang in May. Jiatong, Energy Investment, and Zhongtai were expected to restart. The overall start - up remained at a low level. On the demand side, the pre - holiday start - up of polyester was stable, while the start - up of downstream weaving and texturing decreased month - on - month [2] MEG - **Price and Index Changes**: From April 29 to May 8, the MEG outer - disk price increased from 488 to 498, and the MEG coal - to - profit increased from - 10 to 36 [3] - **Device Changes**: Shanghai Petrochemical's 380,000 - ton device was restarted, and Guizhou Qianxi's 300,000 - ton device was under maintenance. Before the holiday, the start - up was basically stable. During the holiday, Xinjiang Tianye and Shaanxi Yanchang were expected to restart, and later Shaanxi Coal, Satellite, and CNOOC Shell had maintenance plans. Overseas, the restart of US Lotte and Malaysia Oil was postponed [3] - **Supply - Demand Situation**: The marginal is in the de - stocking stage, but the port de - stocking amplitude may be limited due to the implicit inventory. The supply reduction is limited under the good coal - to - MEG efficiency, and there is partial production conversion in oil - based MEG [3] Polyester Staple Fiber - **Price and Index Changes**: From April 29 to May 8, the price of 1.4D cotton - type staple fiber decreased from 6430 to 6415, and the short - fiber profit changed from 119 to 59 [3] - **Device Changes**: Not provided - **Supply - Demand Situation**: The pre - holiday start - up was maintained at a high level, the sales improved month - on - month, and the inventory decreased slightly. During the holiday, the start - up was expected to be maintained. On the demand side, the start - up of the polyester yarn decreased month - on - month, the raw material inventory decreased, and the finished - product inventory increased [3] Natural Rubber & 20 - Number Rubber - **Price and Index Changes**: From April 29 to May 8, the price of US - dollar - denominated Thai standard rubber increased from 1695 to 1740, and the price of Shanghai full - latex rubber increased from 13860 to 14215 [3] - **Device Changes**: Not provided - **Supply - Demand Situation**: The main contradictions are the low absolute level of national explicit inventory, the slight rebound of the Thai cup - lump rubber price, and the rubber purchase and storage [3] Styrene - **Price and Index Changes**: From April 29 to May 8, the price of ethylene (CFR Northeast Asia) remained at 790, the price of pure benzene (CFR China) decreased from 707 to 685 and then increased to 700, and the price of styrene (CFR China) decreased from 880 to 865 [9] - **Device Changes**: Not provided - **Supply - Demand Situation**: Not provided

Report Summary 1. Report Industry Investment Rating No information provided. 2. Core Viewpoints - For PTA, in May, the overall de - stocking of PX and PTA continues, but the far - month supply - demand is expected to weaken as polyester reduces its load. PTA processing fees have fully recovered, and attention should be paid to the opportunity of expanding PXN at low prices and the opportunity of shrinking PTA processing fees at high prices in the long - term [2]. - For MEG, the marginal situation is in the de - stocking stage, but the port de - stocking amplitude may be limited due to hidden inventories. The far - month supply - demand mainly focuses on the changes in imports and ethane - based production benefits under the influence of subsequent tariffs [2]. - For polyester staple fiber, there is still pressure for inventory accumulation in the future, but the futures processing fee is not high, and the price is supported by the low spread between raw and recycled materials [2]. - For natural rubber and 20 - number rubber, the main contradictions are the relatively low absolute level of national explicit inventory, the slight rebound of Thai cup - lump rubber price, and the state of stockpiling. The recommended strategy is to wait and see [2]. 3. Summary by Product PTA - **Price and Margin Changes**: From April 25 to May 6, the price of crude oil decreased by $0.9, the price of PTA internal - market spot remained unchanged, the PTA processing difference decreased by 58, and the polyester gross profit increased by 73 [2]. - **Device Changes**: Hengli Huizhou's 2.5 million - ton device was under maintenance, Yisheng Dalian's 2.25 million - ton device was under maintenance, and Taihua's 1.2 million - ton device was restarted [2]. - **Supply - Demand Outlook**: PX and PTA are expected to continue de - stocking in May, but the far - month supply - demand will weaken as polyester reduces its load [2]. MEG - **Price and Margin Changes**: From April 25 to May 6, the MEG internal - market price decreased by 26, and the MEG coal - based profit decreased by 26 [2]. - **Device Changes**: Shanghai Petrochemical's 380,000 - ton device was restarted, and Guizhou Qianxi's 300,000 - ton device was under maintenance [2]. - **Supply - Demand Outlook**: The marginal situation is in the de - stocking stage, but the port de - stocking amplitude may be limited, and the far - month supply - demand depends on tariff - related factors [2]. Polyester Staple Fiber - **Price and Margin Changes**: The daily change on May 6 showed that the short - fiber profit increased by 48, and the pure - polyester yarn profit increased by 15 [2]. - **Device Maintenance**: No device maintenance information was provided this week [2]. - **Supply - Demand Outlook**: There is still pressure for inventory accumulation, but the futures processing fee is not high, and it is supported by the low spread between raw and recycled materials [2]. Natural Rubber & 20 - Number Rubber - **Price Changes**: From April 25 to May 6, the price of US - dollar Thai standard spot increased by 30, and the price of Shanghai full - latex increased by 240 [2]. - **Supply - Demand Outlook**: The main contradictions are the low explicit inventory, the rebound of cup - lump rubber price, and the stockpiling situation. The recommended strategy is to wait and see [2]. Styrene - **Price Changes**: From April 25 to May 6, the price of pure benzene (CFR China) decreased by $56, the price of styrene (Jiangsu) decreased by 265, and the price of EPS (East China ordinary material) decreased by 175 [6]. - **Profit Changes**: The domestic profit of styrene remained at - 79, and the domestic profit of EPS decreased by 55 [6].

研究中心能化团队 2025/05/06 P T A 日期 原油 石脑油 日本 PX CFR 台湾 PTA内盘现 货 POY 1 50D/4 8F 石脑油裂 解价差 PX加工差 PTA加 工差 聚酯毛利 PTA平衡 负荷 PTA负 荷 仓单+有 效预报 TA基差 产销 2025/0 4/24 66.6 582 744 4350 6280 94.19 162.0 225 -3 86.0 77.7 122028 15 0.60 2025/0 4/25 66.9 582 752 4415 6265 91.59 170.0 247 -63 86.2 78.9 111956 20 0.75 2025/0 4/28 65.9 578 758 4585 6395 95.25 180.0 383 -86 86.2 77.7 109868 80 0.60 2025/0 4/29 64.3 572 756 4540 6420 101.35 184.0 358 -24 86.2 77.7 105532 90 0.35 2025/0 4/30 60.2 546 737 4555 6420 101.08 191.0 358 -37 86 ...

研究中心能化团队 2025/04/30 TA基差 产销 P T A 日期 原油 石脑油 日本 PX CFR 台湾 PTA内盘现 货 POY 1 50D/4 8F 石脑油裂 解价差 PX加工差 PTA加 工差 聚酯毛利 PTA平衡 负荷 PTA负 荷 仓单+有 效预报 2025/0 4/23 66.1 589 750 4340 6265 104.34 161.0 182 -11 86.0 78.9 124544 10 0.70 2025/0 4/24 66.6 582 744 4350 6280 94.19 162.0 225 -3 86.0 78.9 122028 15 0.60 2025/0 4/25 66.9 582 752 4415 6265 91.59 170.0 247 -63 86.2 78.9 111956 20 0.75 2025/0 4/28 65.9 578 758 4585 6395 95.25 180.0 383 -86 86.2 78.9 109868 80 0.60 2025/0 4/29 64.3 572 756 4540 6420 101.35 184.0 358 -24 86 ...